Re: [R] select different variables from a list of data frames

Hi Arun: Exactly. That's exactly what I'm looking for! On 2012-11-12, at 5:55 PM, arun kirshna [via R] wrote: > Hi, > Seems like there was a typo in "mylist" > mylist<-list(df1=data.frame(a=seq(1,10,1), c=seq(1,10,1), q10=rep('favour', > 10)), df2=data.frame(a=seq(1,10,1), b=seq(15,24,1), q14=r

Re: [R] select different variables from a list of data frames

Hi, In addition to: mylist<-list(df1=data.frame(a=seq(1,10,1), c=seq(1,10,1), q10=rep('favour', 10)), df2=data.frame(a=seq(1,10,1), b=seq(15,24,1), q14=rep('favour', 10))) lapply(mylist,function(x) x[colnames(x)%in% c("a","q10","q14")]) you could also use: lapply(seq_along(mylist),function(i) m

Re: [R] select different variables from a list of data frames

Hello, Try the following. lapply(mylist, function(x) x[,grep("a|q", names(x))]) Hope this helps, Rui Barradas Em 12-11-2012 22:34, Simon Kiss escreveu: Hi: How do I select different variables from a list of data frames. I have a list of 13 that looks like below. Each data frame has more vari